Pump.



L. A. ASPINWALL.

PUMP.

APPLICATION FILED SEPT 8. m3.

Patented Nov. 30, 1915.

COLUMBIA PLANODRAPH C0,. WASHINGTON, D. c

UNITED STATES PATENT ()FFICE..

LEVTIS AUGUSTUS ASPINVIALL, OF JACKSON, MICHIGAN, ASSIGNOE T0 ASPINWALL MANUFACTURING COMPANY, A CORPORATION OF MIGI-IIGAN.

PUMP.

Application filed September 8, 1913.

To all whom it may cancer-n Be it known that I, LEWIS AUGUSTUS AsrrNwALL, a citizen of the United States, residing at Jackson, in the county of J ackson and State of Michigan, have invented an Improvement in Pumps, of which the following is a specification.

This invention relates to a pump and is designed particularly for use in liquid spraying apparatus, and is an improvement on the pumps shown and described for this purpose in Letters Patent No. 653,333, July 10, 1900, Letters Patent No. 828,175, August 7, 1906, and Letters Patent No. 1,018,804,

February 27, 1912, all granted to the Aspinwall Manufacturing Company, as my assignee, for improvements in liquid Sprayers.

The object of my present invention is the .provision in a liquid sprayer of a single acting, relatively high pressure piston pump, so constructed and driven that the discharge therefrom is substantially continuous and the running of the pump is practically as even as that of a rotary pump, the details of construction of which will be hereinafter more particularly described.

In the drawing, Figure 1 is a plan of my improved pump. Fig. 2 is a side elevation thereof, and Fig. 3 is an elevation looking at the left-hand end of the pump, as shown in Fig. 2.

Referring particularly to the drawing, I

' employ a bed 10 provided with an arch 11,

in order to properly place the bed on the frame of the liquid conveyor. It will'be un derstood, however, that the particular form of the bed is no part of my present invention, as any suitable bed may be employed upon which to mount the pump.

At one end the bed 10 is provided with bearings 12 and 13, in which a shaft 14 is journaled. In this shaft, between the bearings, there is a crank 15, and on the shaft, at one end adjacent the bearing 13, is a sprocket 16, by which the shaft may be driven, and at the other end of the shaft 14, adjacent the bearing 12, there is a crank 17 provided with a pin 18, by which the agitator, commonly used in liquid sprayers, is operated, as, for example, as illustrated in either of the Letters Patent to which reference is hereinbefore made.

The pump made in accordance with my present invention preferably comprises two cylinders, set at right angles to each other, one of which is placed in a vertical position Specification of Letters Patent.

Patented Nov. 30, 1915. Serial No. 788,558.

and the other in a horizontal position when in use. The vertical cylinder is indicated at 19 and is provided with a base 20 resting upon the bed 10, and to which it is suitably connected by bolts 21 or otherwise. The horizontal cylinder is indicated at 22, and this is provided with a base 23 which rests upon the bed 10 and is secured thereto by bolts 24 or otherwise.

Intermediate of the adjacent ends of the vertical cylinder 19 and the horizontal cylinder 22, is a suction and discharge member 25. As illustrated, the adjacent ends of these cylinders are flanged, as is also the-opposite sides of the member 25, and these parts are secured together by suitable bolts passing through the flanges of the respective members. The cylinder 19 is fitted with a piston 26, connected to which is a piston bar 27. Exteriorly, the cylinder 19 is provided with a longitudinal rib 28, to which the guide 29 is connected by bolts 30. In the guide 29 there isa slide-way 31, within which the piston bar 27 reciprocates. Similarly the cylinder 22 is fitted with a piston 32, connected to which is a piston bar 33, which extends beyond the end of the cylinder. Exteriorly, and on opposite sides, the cylinder 22 is provided with longitudinal ribs 34. The guide is connected to one of these ribs by suitable bolts or otherwise, and in this guide 35 is a slide-way 36 adapted to receive the piston bar 33 and within which slide-way the piston bar 33 reciprocates.

37 designates a standard, the base 38 of which is arched to extend over the upper surface of the cylinder 22, and is connected to the ribs 34 by bolts 39 or otherwise. At its upper end, the standard 37 is provided with an ofi?set portion 40 extending away from the vertical cylinder 19.

41 designates a connecting rod provided at one end with a bearing to receive the pin of the crank 15, to which pin this connectingrod is secured by a cap 42 and bolts43. At the end at which the connecting rod is attached to the crank 15, it ,is provided with an extension or lug 44. Pivotally connected at one end of this extension 44 is a connecting rod 45, which at its opposite or upper end'is pivotally connected toone end of a beam 46. At its opposite end, this beam 46 is pivotally connected to one end of a link 47, the other end of which is pivotally connected in the standard 37. The beam 46 is also provided with an aperture or bearing adapted to receive a pin 48 connected to the piston bar 27 of the vertical cylinder 19, this pin 48 passing through the said bearing in the bar 46 and the parts maintained in this position by a cotter pin 49, which passes through the pin 48.

At the free end of the connecting rod 41, one end of a beam 50 is pivotally connected. The other or upper end of this beam 50 is pivotally connected to one end of a link 51, the opposite end of which is pivoted at the end of the extension 40 of the standard 37. This beam 50 is provided with an aperture or bearing adapted to receivea pin secured in the piston bar 33 of the horizontal cylinder 22. This pin 52 passes through the said bearing in the beam 50 and the parts are secured in this relationship by a cotter pin 53, which passes through an aperture provided therefor in the pin As indicated in Fig. 3, the member 25 's preferably provided with an extension 54. This is fitted with a flange 55, upon which a flange 56 of an air or pressure cylinder 57 is seated and the flanges secured in position by bolts 58 or otherwise. The pressure cylinder 57 may be fitted with a gage 59, and adjacent its lower portion is provided with discharge ports 60, either one or both of which may be employed for delivering the liquid handled by the pump to the nozzles of the sprayer, or for other purposes.

The suction intake ofthe pump is at the other end of the intermediate member 25, and is indicated at 61. This may be fitted with a. pipe 62, to which is connected a hose or other means leading to the source of liquid which the pump is designed to handle.

It will be apparent from the foregoing description that in the operation of this pump, the crank shaft, in the revolution thereof, imparts a vertical reciprocating motion to the connecting rod 45, and a horizontal reciprocating motion to the connecting rod 41. The movement of the connecting rod 45 is imparted through the beam 46 and the link 47 to the piston bar and piston of the vertical cylinder 19, while the movement of the connecting rod 41 is imparted through the beam 50 and link 51 to the piston bar and piston of the horizontal cylinder 22 in such a manner that the discharge from the cylinders will be continuous during the greater portion of each revolution of the crank shaft. It will be furthermore understood that suitable suction discharge valves are provided in the intermediate member 25.

I claim as my invention:

1. A pump comprising a horizontal cylinder, a piston therein, a guide having a. slide-way therein secured to the said horizontal cylinder, a piston bar secured to the piston in the horizontal cylinder and adapted to move in the said slide-way, a vertical cylinder, a piston therefor, a guide having a slide-way therein secured to the said vertical cylinder, a piston bar connected to the piston in the vertical cylinder and adapted to move in the last aforesaid slide-way, a, standard having an off-set end connected to the horizontal cylinder, a crank shaft, a. rod connected at one end to the crank of the said shaft, a beam pivotally connected at one end to the opposite end of the said rod, a. link pivotally connected at one end to the opposite end of the said beam, and at its opposite end to the off-set end of the said standard, means for pivotally connecting the piston bar of the hor'zontal cylinder to the said beam, a rod pivotally connected at one end to the aforesaid rod, a. beam pivotally connected at one end to the opposite end of the last aforesaid rod, a link pivotally connected at one end to the opposite end of the last aforesaid beam, and at its opposite end to the said standard, and means for connecting the last aforesaid beam to the piston bar of the vertical cylinder.

2. A pump comprising a horizontal cylinder, a piston therein, a. guide having a slide-way therein secured to the said horizontal cylinder, a piston bar secured to the piston in the horizontal cylinder, and adapted to move in the said slide-way, a vertical cylinder, a piston therefor, a guide having a slide-way therein secured to the said vertical cylinder, a piston bar connected to the piston in the vertical cylinder and adapted to move in the last aforesaid slide-way, a standard having an off-set end connected to the horizontal cylinder, a crank shaft, a rod connected at one end to the crank of the said shaft, a beam pivotally connected at one end to the opposite end of the said rod, a link pivotally connected at one end to the opposite end of the said beam, and at its opposite end to the off-set end of the said standard, a pin fixed in the piston bar of the horizontal cylinder and journaled in the said beam, a rod pivotally connected at one end to the aforesaid rod, a beam pivotally connected at one end to the opposite end of the last aforesaid rod, a link pivotally connected at one end to the opposite end of the last aforesaid beam. and at its opposite end to the said standard, and a pin fixed in the piston bar of the vertical cylinder and journaled in the last aforesaid beam.

Signed by me this 3d day of September, 1918.

LEWIS AUGUSTUS ASPINWALL. Witnesses:

C. G. RAMLnY, H. F. Wn'rzn'r.

' Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington. D. C." 

